KUM-roo am BITH
Here's a breakdown:
* Cymru: The "C" is pronounced like a "K", and the "u" has a short "u" sound, similar to "uh".
* am: This is pronounced as a short "a" sound, similar to "am" in English.
* byth: The "th" is pronounced like the "th" in "thin" or "think".
So, the whole phrase sounds like a combination of these sounds, with emphasis on the "KUM-roo" and "BITH" parts.